7804Chemical EngineeringMedium
Xanthates are used in the froth floatation process as a/an ________?
AActivator
BCollector
CFrother
DConditioner
Correct answer
B. Collector
Explanation
The correct answer is Collector.
Correct answer
B. Collector
Explanation
The correct answer is Collector.
Solvent used in duo-sol extraction for lube oil upgradation is a mixture of________?
Commercial production of Vanaspati is done by ________ of edible vegetable oils?
The thermal radiative flux from a surface of emissivity = 0.4 is 22.68 kW/m2. The approximate surface temperature (K) is (Stefan-Boltzmann constant = 5.67 × 10-8 W/m2.K4)?
In low temperature carbonisation of coal, the________?
Octane number (unleaded) of gasoline produced by isomerisation of butane may be about ________?
A 10 cm dia steam pipe, carrying steam at 180°C, is covered with an insulation (conductivity = 0.6 W/m.°C). It losses heat to the surroundings at 30°C. Assume a heat transfer co-efficient of 0.8 W/m2.°C for heat transfer from surface to the surroundings. Neglect wall resistance of the pipe and film resistance of steam. If the insulation thickness is 2 cms, the rate of heat loss from this insulated pipe will be________?